Apparatus for casting bars for buckles



Aug. 25,1931. B. MECHLOVITS r 1,820,757

APPARATUS FOR CASTING BARS FOR BUCKTQES Filed Dec. 14, 1929 Patented Aug. 25, 1931 UNITED. .*s' 'i". u"ss 1P ATTENT OFFICE.

BERNAT n acin.ovrtrs, on NEW Yonx, N. Y.

APPARATUS FOR (JASIING BARS FOR B'UGIKIEES Application filed December 14, 1929. Serial No. 414,006.

c The invention proposes a method for casting bars of a buckle which includes the steps of directing the melted substance to-the bar portion of a mold for "a buckle, and interposing a restriction'in themelted substance pas- 15 sage immediately adjacent said bar portion so that upon cooling of the casting the excess metal may be broken off easily along the reduced-portion formed by the restriction.

The invention also proposes a mold consistlao in of several mold sections adapted to be held together and formed with buckle-forming passages including buckle bar portions and melted substance passagesto the said bar portions, and projections in said passages im- 'mediately before the buckle'bar portions so :that upon cooling of a casting made in the :mold the excess metal may be brokenoff easily along the reduced portions formed by said projections,

- For further'comprehension of the invention, and of theobjects and advantages thereof, reference will be had to the following description and accompanying drawings,and to the appended claims in which the various novel features of theinvention are moreparticularly set forth, I

In the accompanying drawings forming a material part of this disclosure 2- Fig. 1 is a front View ofa buckle constructed according to this invention.

Fig. '2 is a plan View of the buckle shown in Fig. 1. I I

Fig. 3 is a plan view of a group of buckles shown before the excess metal has been broken off. I r x Fig. 4 is a plan view of a mold constructed according to this inven-tioin Y i Fig. 5 is a fragmentary planview of the TED base plate ofthe mold shown in Fig. 4. g

Fig. 6 is a vertical sectional view taken I. fon the line .6-6 of Fig. 4. I I Fig. 7 is a fragmentary elevational view of one of the side members of the mold lookin gin the direction of the line 7-7 .of'Fig. 4.

Fig. 8 is a fragmentary vertical sectional view taken'on-the line 8 8of Fig. 7.

Fig. 9 is a view similarto Fig. 7, but illustrating a modification. I

Fig. 10 is afragmentaryview taken on the fill line 10+'10 of Fig. 9.

Fig. 11 is a fragmentary view taken .on

theline 1111 of Fig. 9.

Fig. 12 is a perspective view of a pair of buckles hooked together. I

Themold consists of several mold sections such as base mold section 10 and apair of side mold sections 11 and '12 respectively,

all adapted to beheld together andf'ormed with buckle-forming passages 13 including "7T0 buckle bar portions 14 and melted substance passages 15 tofithe said bar portions 14 and projections 16 in the said passages 15 immediately above the buckle bar portions, 14 so that upon cooling of a casting made in the mold the excess metal may be-broken off easily along'the reduced portions formed by constructed according to the invention meth- 0d and 'mold. These buckles indicated by numeral 17 may be of any design and shape and preferably formed with a top hook portion 18, and av rear buckle bar 19 with side arms 20 communicating with the rear of the buckle. In Fig. 3, a group of'the buckles are shown connected with the excess metal 21 formed during the casting. It should be noticed that this excess metal is in the shape of the passages 15 from which it was withdrawn. The projections 16 in thepassages form reduced portion 16 connecting the buckle bars and theexcess metal. Theseportions 16? are parallel with the bars and readily breakable upon bending of the buckle for disconnecting from the excess metal. The buckles are origin-ally cast with straight portions 18 which are thereafter bent into the hookslS.

The mold isshown consisting of the three sections mentioned. The side sections 11 and 12 are adjacent each other and rest upon the base section 10. Pegs 22 project from the sections and engage in apertures in adjacent sections so as to accomplish the correct holding of the sections together. The buckle-forming passages 13 are arranged in the base section 10 only and the buckle bar side arms 20 extend upwards and are formed in the side sections 11 and 12. The bar portion is also formed in the side sections 11 and 12 between the portions 20. Half of the portions 19 and 20 are formed in one of the side sections and the other half in the adjacent face of the other section.

The melted substance passages 15 are also formed half in one of the side sections and half in the other. They are inclined and joined at the top in a single large entrance 24. The projections 16 between the lower ends of the passages 15 and the buckle bar portion 14 extends only a fractional part of the length of the buckle bar portion. This reduces the amount of excess metal that has to be broken to disconnect the buckles,

In Figs. 9, 10 and 11, a modified form of the mold has been disclosed in which a means is provided for adjusting the thickness of each bar portion. Each side section of the mold is formed with an iinbedded block 25 extended between a pair of the passages 15 to one of the bar portions 14, and is provided with lateral projections 26 constituting the said obstructions in the passages 15. A plurality of shims 27 are arranged between the side of the block 25 remote from the bar portion 14 and the side section.

Each of the blocks 25 is formed with a transverse slot 28 thru which a screw 29 engages for holding the block in various adjusted positions. A recess 30 is formed in the block for receiving the head of the screw so that it does not project above the surface. The thickness of the buckle bar portion 14 may be changed by loosening the screw 29, removing or adding shims 27, holding the block tight against the shims now remaining and resetting into place by clamping down the screw. In all adjustments of the block, the lateral projections 26 form the obstructions so that the buckles may be seaily broken off from the excess metal.

In Fig. 12 a buckle has been shown consist ing of a flat member ornamented on its front side (not viewable in the figure) and having a rear side 36, an integral buckle bar 37 being attached upon tile rear side, and an integral hook 38 connects with the rear side 36 so as to project above the rear surface and engages an eye member 39 integral with an adjacent buckle 10. The eye member also projects from the rear face 41 of the buckle 40. This latter buckle is provided with a buckle bar 42. Attention is particularly called that the hook and eye member hold the buckles in edge contacting relation so that the flat members are in the same plane.

While I have shown and described the preferred embodiment of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is 1. A mold for casting buckles, consisting of a base section and two adjacent side sections on said base section adapted to be held together and formed with buckle-forming passages including buckle bar portions and melted substance passages to said bar portions, and projections of the side sections in said passages immediately above the buckle bar portions extending only a fractional part of the width of the buckle bar portion so that upon cooling of a casting made in the mold the excess metal may be broken off easily along the reduced portions formed by said projections.

2. A mold for casting buckles, consisting of a base section and two adjacent side sections on said base section adapted to be held together and formed with buckle-forming passages including buckle bar portions and melted substance passages to said bar portions, and projections of the side sections in said passages immediately above the buckle bar portions extending only a fractional part of the width of the buckle bar portion so that upon cooling of a casting made in the mold the excess metal may be broken off easily along the reduced portions formed by said projections, said mold being held together by pegs engaging in apertures in adjacent sections accomplish the correct holding of the parts, said buckle-forming passages being arranged in the base section only and the buckle bar portion and melted substance passages being half in each of the side sections.

3. A mold for casting buckles, consisting of a base section and two adjacent side sections on said base section adapted to be held together and formed with buckle-forming passages including buckle bar portions and melted substance passages to said bar portions, and projections of the side sections in said passagesimmediately above the buckle bar portions extending only a fractional part of the width of the buckle bar portion so that upon cooling of a casting made in the mold the excess metal may be broken off easily along the reduced portions formed by said projections, said projections being parallel with the bar portions and not extending their full lengths.

4. A mold for casting buckles, consisting of a base section and two adjacent side sections on said base section adapted to be held together and formed with buckle-forming passages including buckle bar portions and melted substance passages to said bar portions, projections of the side sections in said passages immediately above the bucklebar portions extending only a fractional part of the width of the buckle bar portion so that upon cooling of a casting made in the mold the excess metal may be broken off easily along the reduced portions formed by said projections, and means attached upon the side sections in between the melted substance passages for adjusting the thickness of each buckle bar portion.

5. A mold for casting buckles, consisting of a base section and two adjacent side sections on said base section adapted to be held In testimony whereof I have afiixed my sig- I nature.

BERNAT MECHLOVITS.

together and formed with buckle-forming passages including buckle bar portions and melted substance passages to said bar portions, projections of the side section in said passages immediately above the buckle bar portions extending only a fractional part of the width of the buckle bar portion so that upon cooling of a casting made in the mold the excess metal may be broken ofi' easily along the reduced portions formed by said projections, and means for adjusting the thickness of each buckle bar portion, comprising blocks imbedded in each of the side sections and extended between passages to one of the bar portions, lateral projections from the block constituting the said projections and obstructions of the passages, a plurality of shims between the side of the block remote from the bar portion and the said side section, and a means for firmly holding the block against the shims.

6. A mold for casting buckles, consisting of a base section and two adjacent side sections on said base section adapted to be held together and formed with buckle-forming passages including buckle bar portions and melted substance passages to said bar portions, projections of the side sect-ions in said passages immediately above the buckle bar portions extending only a fractional part of the width of the buckle bar portion so that upon cooling of a casting made in the mold the excess metal may be broken off easily along the reduced portions formed by said projections, and means for adjusting the thickness of each buckle bar portion, comprising blocks imbedded in each of the side sections and extended between passages to I 

